) i'm sure it's not the sender. The problem is only with the regular text msg, the OS is up to date, the phone is factory unlocked, I'm on Tmobile.

Posted via CB10

This occurs with Android phones and less often with iMessage users. Since both those system Now under the hood and services from servers try to send sms through a data gateway that is not standard, yet still arrives as a text to BB10 devices you get duplicates for every one they send. It's annoying as hell.

Root cause is fully unknown but there are a few of not seldom discussions regarding this say 6mths ago in the threads.